Column



Dec. 27, 1938. c. B, SCHNEIBLE" 2,141,829

COLUMN l Filed oct. 5o, 1935 2 sheets-Shah* 1 Dec. 27, 1.938. c; B, SCHNEIBLE 2,141,829

'COLUMN Filed Oct. 350, 1935 2 Sheets-Sheet 2 .45 vanes arefdescribed in greater detail in *my Pat- (not shown) by which the oil is again forced into 45 v'0 Below the lowermost baffle is supported a curved into the tangential inlet I1. The entering air 50 Patented Dec. 27,', 1938 y n UNITED STATES- PATENT OFFICE 'amisz 'COLUMN claude B. scheible, chicago, 1u. ,y -vApplcation October 30, 1935, Serial No. 47,488

s claims. (01.261-18) This invention relates to improvement in colis connected an inlet pipe tting I8. Adjacent umns, such as dust-separating columns, distilling the inner side of pipe IB and extending about columns, dephlegmating towers, scrubbing towers, half way about the casing A is a wear ring I9'- absorption towers and similar towers. which is designed to protect the wall of the casing 5 An object ofthe invention is to provide a from abrasion caused by foreign` particles carried 5 column in which two streams of liquid are emin the incoming air or vapor. ployed, one'stream being used in the lower por- 'I'he purified air, vapor or gas is drawn olf at tion of the column to carry away the heavier the top of the column through the horizontal particles of material while the other stream is outlet pipe 20 which has an inclined opening in 10 employed in the upper portion of the column to about the center of the column. With Lthis con- 10 carry away the remaining' lighter particles of struction, the purified air is drawn from the cen- `material. A further object is to pass vapor, air tral portion of the rotating annulus of air, the or other gases upwardly through a column and kheavier portions of the annulus being carried by in contact with different liquids, the liquids being centrifugal force near the walls of the column. l5 kept separate and at least the liquid employed The casing A is provided below the inlet I'I l5 in the upper portion of the column recycled. A With a funnel-shaped discharge portion A. Any further object lis to provide a column in which suitable outlet connection may be connected with the entering air or the like is given a whirling the lower flanged end of casing portion A. motion so as to throw out vparticles of material The topmost baiile ring I0 is preferably down-- by centrifugal force, a stream of water or other wardly inclined `at 2| to provide a trough for 20 suitable liquid being directed about the lower receiving entrained liquid thrown out of the ,air walls of the column to carry away such heavier above the trough. Inclined pipes 22 entend particles While" a stream of oil or other suitable downwardly from the trough and at an angle material is recycled in the upper portion ofthe inclined in the direction of rotation of the,air. column to contact and remove the lighter par- The rotating air passing-the pipes 2| tends to 25 ticles carried by the ascending air stream. Other suck liquid therethrough from the trough; specific `objects and advantages will appear as Below the topmost baille ring I0 there is a secthe specication proceeds. ond liquid inlet pipe 23 which may be employed The invention is illustrated, in a preferred emfor introducing a suitable oil or other liquid bodiment, by the accompanying drawings, in which is tenacious and eifective in removing. dust 30 whichparticles, etc., from the ascending stream of air Figure 1 is a vertical sectional view of a column or the like. Any desired number of bales may embodying my invention; Fig. 2, a top plan View,4 be disposed below the discharge end `of pipe 23.

a portion of the top wall beingbroken away; Just above pipe I3, I provide a baille ring 24 35 and fFig. 3, a transverse sectional view, the section 4Which is inclined downwardly toward the column 35 being taken as indicated at line 3 of Fig. 1. wall A to provide 'a trough adjacent the wall.

In the illustration given, the casing A is prov Integrally formed with the inner end of ring 24 vided on its interior preferably with ya series of is a vertical collar 25; The vanes I2 rise upon baiiles of the plate and ring type. I0 designates the top of collar 25 and the top plate I I is carried the baffle ring andII the plate. Between the by the vanes I2. An outlet pipe 2li-for the oil 40 plates and rings are secured vanes I2 which imor kother suitable liquid employed above baille part a whirling or circular motion to the. air, ring 24 communicates with the trough formed by vapor, or othergaseous material vpassing upthe bale plate 24, collar 24 and column A. The wardly through the casing. The baille plates and pipe 26 preferably communicates with a pump ents Nos. 1,783,813 and 1,790,596. inlet pipe 23. v In the lower portion of the column is a liquid Assuming that the column is to be used for 'inlet pipe I3, the end o'f the pipe being turned the purpose of'removing dust particles from air, downwardly at about the center of the column. the dust-laden `air is passed throughl pipe I8 deflector I4 The deflector I4 is preferably susis thus given a circular motion, and as it is drawn -pgmiedby@ rods I5 whichare we ded at their upwardly through the succeeding bailies, the upper ends .tothe lowermost plate II. varies 42 maintain the circular motion of the Below deflector I4, the casing Aprovides atan air. 'Ihe whirling mass of air is contacted in mi lgential rectangular airfor vapor inlet I'I to which its upward movement by a downwardly flowing 55 'I'he rotating liquid sheet also forms a blanket .to protect the walls from the dust particles which are thrown out by centrifugal force against the walls. The sheet of Vliquid further serves the purpose of collecting the heavy dust particles which are thrown out by centrifugal force in the lower portion of the column, carrying them downwardly through the funnelportion A. The funnel portion A' isso designed as to enable the rotating sheet of liquid to move downwardly without interference, while thoroughly cleaning the inner surface of thecolumn from dust, mud, etc. The rotating air distributes the liquid evenly and uniformly over the bottom portion of the column.

By providing a rotating liquid sheet in the bottom ofthe column-adjacent the entrance of the dust-laden air, a very .substantial amount of the dust is remoyed at once as itis thrown out by centrifugal force, thus saving the upper portion of the column from contactfwith such abrasive material. If desired'a cheap liquid such as water may be rintroduced through pipe I3 and by this means most of the foreign particles can be removed at the very outset with very slight cost thus enabling one to use a more expensive and at the same time a more eillcientliquid in 'the upper part of the column to remove the liner particles of dust.

Through pipe 23 the oil or-other suitable liq-il A uid isv introduced and successively brought into contact with the ascending air stream by,the baille device placed below pipe 23. The ne dust is effectively removed and carried downwardly into the trough formed by lring 24, collar 25 and the column wall A. From -the trough, pipe 26 leads-thoil or the like to a pump by which it may be returned to inlet pipe 23. By using the oil or other suitable liquid in the upper portion of the chamber'as described and after the greater portion of the dust particles have been removed, I am able to recycle the oil for a very substantial periodbefore it becomes too contaminated to prevent reusing.

Any entrained oil drops which may be carried by the air into the upper portion of ,the.column are thrown out by the rotating annulus of air andfall into the troughformed `by the upper.- most ring I0. The inclined pipes 22 are arranged at an angle inclinad in the direction of rotation of the air so that the rotating air tends to suck liquid therethrough from the trough. In this manner, the oil is retained within the oil chamber of the column and is consistently reutilized for 'contacting the rising current of air.

Although thepresent invention hasbeen de' scribed in connection Vwith the details of a specic embodiment thereof, it is not intendedthat such details shall be regarded as limitations upon the scope of the invention except insofar as included in the accompanying claims, and in the accompanying claims where the words gas, vapor, air, etc., are used, it will be underL Stood that such terms are used interchangeably and in their broad sense to include all vapors, gases and the like.

I claim: 7

l. In a dust collector column, a tangential air inlet in the base of said column, a deflector diskv above said inlet. means for supplying liquid upon said deflector disk to form a rotating sheet of liquid of unified mass covering the entire inside surface of fthe` lower portion of the column, and means for recycling a second stream of liquid through the upper portion of said column in contact with the air in the upper portion of the column.

2. In a dust collector column a tangential air inlet in the base of said column, means for forming a rotating sheet of liquid above the inner surface of the lower portion of the column, means for contacting Jthe rising stream of air with a descending stream of oil, and means for collecting and recycling said oil stream.

3. A method for the purposes setforth, comprising; contacting a stream of dust-laden-air with water while said air stream is in the form of an annulus of air in rapid circular motion and while maintaining said water in a sheet about the periphery of said annulus of air;4 contacting the partln cleansed air `stream with oil; and recycling said oil for again contacting the stream of partly cleansed air.

4. In a dust Icollector column, an air inlet at the base of said column, means for contacting a stream of air withla liquid in the lower portion of the column, means for contacting said stream of air with a descending stieam of oil, and means for collecting and recycling said oil stream.

5. A method for the purposes set forth, comprising: contactinga stream of dustrladen air with water while said air stream is in the form of a cylindrical body and while maintaining said water in a sheet about the periphery of said body of air;` contacting the partly cleansed air stream with oil; and recycling said oil for again contacting the stream of partly cleansed air.

6. 'A method for the purposes set forth coinprising: introducing a stream of dust-laden air into the lower portion of a column, passing a stream of -water through said portion ofthe column and in contact with said air -to partly cleanse said air, passing a streamf oil into said' column and in contact with 'said partly cleansed air, and recycling said oil for again contacting said Iair stream.

CLAUDE B. SCHNEIBLE. 

